Centralized automatic control.



S. EINSTEIN.

UENTHALIZED AUPPMA'IIG UON'IHOL.

APPLI'MATKUN U11 MAY 30. N14.

Patented J an. 5, 1915.

4 SHDETS SHEET l.

- n w. $01 504 gnaw aim S.EINSTEIN.

UENTBAUZED AUTOMATIC CONTROL.

AHLWAI'ION TILED MAY 20, 193i! Patented J an. 5, 1915.

4 SHEETS-SHEET 2.

3 #1 we ntoz QMW,

EINSTEIN.

UBNFRALIZED AUYGMATKU comm.

4 SHEETS-SUEET S.

Patented J an. 5, 1915.

I'NVENTOR WITNESSES:

A TTOR/V E Y 'lION TILED MAY 20,1914.

rim

an J p Z J @C W/T/VESStov UNITED- STATES ra rnrrr OFFICE.

sol. EINSTEIN, oF' CINCINNATI, oI Io, ASSIGNOR TO THE CINCINNAT M LLING MACHINE COMPANY, or CIIICINNATI, OHIO, A CORPORATION OF 01110.

CENTRALIZED AUTOMATIC CONTROL.

Specification t Let-tars Patent.

Patented Jan. 5, 1915..

Appiieation filed m 20, I914. s m No. 839,718.

- State of Ohio, have invented a new and Improved Centralized Automatic Control, of which the following Specification is a full disclosure.

This invention deals with machine tools and it proposes various means whereby the construction of conventional machines may be simplified, a greater sturdiness may be imparted to the machine, and whereby its manipulations may be made very much more convenient tothe attendant.

Among various other objects, this inven-' tion attains a reorganization and simplification of the Scheme of transmission outlined by the U.'S. Patent X0. 1.092.479 issued to S. Einstein on April 7th, 1914, whereby a single automatic motionmeverser is enabled to execute all theffunct-ions of the two motion-reversers shoivn by said patent by reason of anarrangement which, at the same time,- als nables fewer parts to be used lta'nt gain in ,-struct .lral .simplicity; without sacrificing anyof the advantages of the embodimentrevealed in said patent. e

Another object is to devise a construction and arrangement that will enfa blc'an automatic motionreverscr, an automatic shifter from quick trayerse to, feed In-fl a hand-operable feed-changer to be compacted within a small compass in a very sturdy and efficient operative relationship.

An ther ob ect is to formulate. and comhinewith certain automatic features. a tablepropelling mechanism in which a murrotating screw. or its equi\'alcnt,"|nay be utilized:

thus, dispensing with the twojournals required forthe two ends of a rctatailescrew. and in. lieu thereof to "use a rotatii'igi not which requires'but one journal; and there y lower cost of manufacture and reduce the number of hearings tobe lubricated.

Another object is to create a new arrangement with respect to the location of the various control features of the organization. so as to bring the control of. the machine.

as to all the urgent working operations.

more immediately within reach of the at tendant. I

Other objects will be in part obvious from the annexed drawings and in part indicated analysis of this-invention.

Thlsmven'tion accordingly consists in the i'eatures of construction, combination of in connection therewith by the following .parts and in the unique relations ofv the members and in the relative pro'portioning and disposition thereofjall-as more completely outlined herein. 1

To enable others skilled in the art'so fully to comprehend j the underlying features thereof that they may embody the.- same by the numerous modifications in structure'and relation contemplated by' this invention, drawings depicting a preferred form have been annexed as a part of thisdisclosure,

and in such drawings, flli'ke characters" of reference denote corresponding parts throughout all the view-sot which Figure 1 is a side elev t machine embod \-'ing thi$- nren'tion; certain parts being brokenia ayfl to-fshow details Fig. 2 a vertical section transverse to line,

2-2 of Fig I showing-details of. thewconstruction of the combined saddle andfeedchange box, and ch me-mounting of: the non-rotatable feed-screw, and of the'motionion-0t 'aj'milling Ieverser, and of the means for shifting from feed to quick-trayer'se ,andponversely.

\ Fig.3 is a vertical section through1line=3..3

of Fig. 2 showing further internal details of the unit consisting-of the -feed-bcx-fand the saddle. 'Fig. 4 'is a""v erti'cal section through line 44 of Fig. 2. Fig.5 is a front elevation 'ofthe lower 'portion of the machine showing the arrangementofwari- .ous control elements. all lOCtlt-Btlfilt the-front and immediately accessible to the attend ant: the parts being setto cause thet'able ufeed to the left intermittently with uick.

traverse movement. and then automaticaliy t o'roturn at a quicli-t-raverseratc at t (-f the stroke. Fig.6 shows the man which the dogs are ndiusted to effect asimi lar cvcle of the table but in the opposite direction. Fig. 7is' a view of the tablewith the dogs set thereon so as to cirecute what is lumwn as continuous milling. Fifi. 8 is a side elevati n showing the construction'of a rotatable trip-member such as this invention proposes. Fig. 9 is a verticalsection through the said trip-member showing the arrangem nt whereby the continuous mo tion ill be interpreted by an oscillating member. Fig. 10 is a plan-of the trio-memhor showing the snap-back construction for enabling the dogs to pass without ultimate tripping ellcct during their return passage. Fig. ii. is a plan showing more clearly the action of the tripanmnber in automatically effecting a shifting from a quick-traverse 1 to a feed. Fig. 12 is a side elevation showing details of the trip-mechanism for either stopping the travel of the table or for causing it to return at the rate it was moving at the end of its stroke. Fig. 13 is aplan showing details of the combined stop and motion-reverser with its trip-control; showing clearly the features for enabling the mechanismautomatically to effect a stop, or to effect an automatic return by cutting out the stop. Fig. 14 is a section through line l3-13 of Fig. 13. I

Continuing now by way of a more de tailed description it may be stated at the outset that this invention contemplates a reciprocatin milling machine table on which are a justablv mounted a plurality of stops or dogs which coiiperate with a plurality of elements mounted in the path of travel of said dogs, and one of which has the function when actuated of changing the rate of travel of the table from a feed to a quick traverse, or conversely, and another of which has the ca acity of reversing the direction of travel o the table, causing the cutter to return either slowly over the work so as to refinish the same or rapidly to reach the starting point without loss of time. I

To obtain an adequate understanding of this invention, it should be kept in mind that the term feed, as used herein, indicates any oneoi' a series of relatively slow movements of the table all essentially suitable for tooling operations, and the term feedchangei or teed-change mechanism indicates only that particular device which determines the rate at which the table thus feeds; and it is to be distin guished from variable speed devices which effect changes not all identified with a tooling-opcration, as well asfrom the speedchange mechanism herein referred to and which determines the speed oi rotation of the 'euttcrspindle. So also, the term quick'traverse is indicative of the rapid non-tooling movement by which the table travels over blank spaces; which motion usually represents the maximum speed at which the table may be moved and abruptly reversed, stopped or moderated to a food without undue shock to the parts. It is desirable that this fast rate hea constant maxi mum for, the sake of clliciency, and that it' be unaffected by variations in the slow speed or feed of the table such as may be resorted to to meet dillerent tooling conditions. Before detailing the specific features of construction whereby these. functions are attaincdit will be convenient first to describe certain major elements of a conventional milling machine. These comprise a table Y that supports the work and which is reciprocated to-and-fro to subject the work bolted thereon to the effect of the cutter that is secured to a spindle X which is continuously rotated by power derived from the same source or primem0ver that actuatcs the table. In order to enable the machine properly to execute its functions, these actuated elements must be capable of being brought intoadjustable relation with one another in two directions. This is accomplished by an interponent frameunit 13 that intervenes between the frame-unit A that directly supports the spindle and the framc-unit C that directly mounts the table. in the type of machine illustrated, the interponcnt frameunit B is conm'ionly termed a knee; the table-supporting frnmc-unit U- is usually termed a saddle, and the spindle mounting frameamit A. is generally termed a column I The chiefmechanical characteristic of the interponent frameunit or knee B is that it provides a relative vertical adjustment as to the spindle-mounting unit, and a horizontal adjustment as to the table-supporting unit, 2'. 6., in a direction transverse to the other. Thus, the knee I cooperates with the saddle C to move the table parallel with the axis of the spindle. The table Y rests on the saddle which in turn slides on the guide-ways 60 provided by the top portionof the knee; which guide-ways extend parallel with thespindle, as shown by Fig. 1. A screw-shaft 61 (soeFig. 5) is journalcd in thekuee' and in" the usual wellknown way feeds the saddle through a suitable nut. This screw-shaft '61 may be rotated in av suitable way, as by means of the hand-wheel 62.

The spindle mountin r column selected to rest on the floor and thus provide a foundation for the machine, as a whole, and it has also been utilized to support or mount both the chai'igc-gear mechanism that varies the speed of the spindle, as Well as the change-gear mechanism that varies the rate of feed of the table. This, however, has resulted in a very considerable inconvenience to the attendant in nnmipulating the maehine. That is to say, the attendant must be stationed at the outer longitudinal side frame unit or of the reciproeatin table in order to scrutinize the action of t 10 machine, but, when so stationed, he .is out of reach of the levers that change the rate of feed of the table, so that in order to change this rate he must shift his position. Q

This invention proposes, among other things a rearran ement and a reconstruction 0 the contro elements so as to free the so-called column of the machine from the A, has heretotore been that also.

hich

HlBChiUlialll that gm said the tahh: bhziii feed 2i Uni."

"um. i

hiiiili'ii i" H ahafi 5 \n'hieh is mii'nuled in {he 5.1.925 m" using: C

t Hi iii- :ili

and

and \Yhif'h {(tl'iiiliiihr ill :1 hovel 9 iIiCF'illIlg with the haw npgwwii heveh R 21:1 L. The he'vei I.v when lil ii/rz'l ti) huh-nut the wwei'.

whiiiwii it?! either the it in turn is H3 him keyed nut w the muii m dei'iieij eiti (-f iimh1-\'ii if; tikilbiliitlill through t park a. and and. mm the H res. We ("#liiiai" mil zii'e zlvzilhihle for ding to the tei'ininiih from hieh the quick-traverse li'ii iiui: nhtizinmhi and th nth? to the Uihlillill memher I- n!!! \vhieh die \Uli we mites Hf te-- we uhtuii'ml E: the first gmih Jim; 5 {he quid; traverse i tme l the feed t; i Thus. in Am iiiit'ivirine Ui iili'ihrm li. the iimtiim i i" Lhe hufi is i'ars zzi'teci (u :x gem If that -i when Hf gears f, j". f" and f 211) one of which may he mused tn drive the bhiift f by i: shingg with the :imn'upriutv one of the I. Fi V and 1: the iselectimi of ziirh is iiii-fiiii'iiii i i-\' the hnniixhiftiug mtriniieniziiity If. wh his ewwntiully ii r =-2sihie tn the att ndant when :YiliiHHWi at miter hmgitinhhni wigs: m the table. The shaft f :Uirlii-F gem f (we Fig. 41). and then the m immi axes thi'uiigh gear f and f to ihe terminal gem F The S eiies mi shifting gee -1 urnsiitutw what is herein t l'iElHi :i feed "mange rntChzlII-i: T" inn] its i'ehitiim in the other ell'iiients, 01 this trims i;.i:-.i m is s-ueh that the iennnml-g ur I will h unused 1 i'utiite at the selected (me 0}" n H"ii of speeds. 21h 41f which will h 4 'il) Unify hl ('\l1' "m the pm- 1ui'theim'inihui gen! QT. :iii i m! of \H "h ii! he :uqm' pii ah i'ni' use during mime timlihg p r-huh i I mute-01151 ihui [h r ciii and I ve! vir uige UZWhZHi (iLfwi'Ii K' i in the fore s if u iiii'ifliifiiiilflil m (haired-11'. :l ih liugmhhed from cix' tiimhie nf' lm'ziii i' i'emm'zn ti) Pepin ed gen iiii'! permit Ni as to position the tripat thefront or accessible edge of the table. The upper end, of this shaft terminates in a journal 39 on which is loosely pivoted a star-wheel 40, which has an inner groove 41 terminating in a shoulder 42, and, by means of the expansile spring 43, this star-wheel is normally maintained with the shoulder 42 against a in 44 projecting from the 10111- nal 39. he effect of this construction is to permit the star'wh'eel to be rotated anti cloclmvise for say nearly ninety degreeswithout turning the shaft 37 (thus permitting a dog to return without making an effective trip), but all motions'clock-wise of the star-wheel 40 are positively imparted to the shaft 37. Now, starting from the position shown by Fig. 5, the dog O-- travels to the left until it impacts the contact sur face 0 of the star-wheel 40, thereby turning the same clock-wise through a definite predetermined angle (here 90), thus correspondingly rotating the gear 45- secured to the end of the shaft 37. T his'gear meshes with a pinion 46, and tbegear-ratit'! is such that the pinion46 will rotate through 180 during the predetermined rotation of the gear 45. This pinion carries :1 depending pin 47 that enters a slot 48 in a segment V pivoted at 49 (Fig. 11), and which in turn carries a pin 50 that engages with a Y- shaped lever W by means of a slot 51 providing for lost motion. This lever W in turn determines the'position of a clutch 7, and, with the parts as shown'on the drawings,,the clutch 7 now engages the terminal gear F andthe table is feeding to the left as appears from Figs. and 7; Fig. 6 being an exception. The construction of the parts V and W is'similar to that used in connection with'the automatic stop and motion reverser and need not be detailed. It will be seen from this'that the effect of'the impact of the dog O-- with the contact surface is to shift the clutch 7 from the gear F to the gear QT; thus, changingthe [110-- tion of the table fromja feed to a quicktrarerse, without, however, changing its direction of movement. I

The automatic feeder embodies all ofthe elements mentioned with respect "to the qnick-traverse with the exceptionof the location of the dog O-- with relation to the position of the star-wheel. To other words,

a dog Z, which is structurally identical with the dog 0-, is nevertheless, now capable of changing the travel of the table from a quick-traverse to a feed by reason of th fact that its contact surface is now enaided to impact the contact mrface z of the star-wheel. and thus give it an additional turn. a so clock-wise, through theypredeterminccl angle, thereby turning thegear 46 through another half revolution and bringing the pin 47 to its other extreme position latter travels to the left.

with the effect of bringing the clutch 7 back into the position shown on Fig. 11. th reby causing the table to feed.

The automatic operation of the parts as arranged according to Fig. 5 may now be understood, and is as follows: Table is feeding to the left. Dog'()'- then impact-s tar wheel and causes table to make a quick traverse to the left. Dog Z restores initial position of star-Wheel and table again feeds to left. Dog O now turns 5-mwheel to make a quick-traverse of the table. Then contact surfaces and of dog N-lclear the star-wheel, which is cons'tructed or located to permit of its so doing, and the contact surface 30 actuates the plunger to render the reverser operative so that, when the contact surface 15 impacts the lever H, the clutch a will be shifted to engage bevel R, and the table will now be moved to the right and will continue doing so until the dog G again shifts the position of the lever lto the neutral or stopping point. The machine may now be started by hand by simply turning the part M, thereby enabling lever H to complete its st oke in the direction initiated by the dog G; thus, starting the table to the left and at the rate determined by the trip dog 0 which last acted on the star-wheel.

The same automatic actions may be given the table in the converse order as will best be understood by referring to Fig. 6. In this figure, the star=wheel 4's in the same poaition as in Fig. 5, but the reverser is in a different position and the table is feeding to the right to bring the dog 0+ against the star-wheel. It is to be noted that this dog has its contact surface traveling at the inner side of the axis of the star-wheel, whereas the dog O. operates at the outer side. The dog 0+, therefore when moving to the right turns the star-wheel in the same direction as the dog when the The impact of dog 0+, therefore, imparts a quick-traverse to the'right to the table; which is again reduced to a feed by the impact of the dog Z+; and it again is converted to a uicktraverse by the im act of the dog i -h; until the dog N-- de resses the p1 unger'50 and shifts the lever If and thus reverses the motion of the table without changing its speed. Ultimately the dog G stops the table and it may then be started by hand.

The continuous milling may be effected by the arrangement shown in Fig. 7, as follows: Assuming that dog N- has just operated to start the table to the left, its rate will be that determined by the efiect' of the last acting dog (here a quick-traverse) 'sothat the table will speed to the left until dog Z- trips the star-wheeli then it will travel to the left until dog 0- trips the star-wheel; then it will make a quick-traverse to the loft fit,

until do; Z- trips thcstar-wheel; then it will food to thev loft until dog trip the star bri'l and imparts a quick-traverse still to tho lci't to tho tabla. 'lhcsc successive imivactzs havo all turned tho atar-whccl clockwisc. Wlu-n tho dog N+ contacts with the lcx'cr ll tlu' motion will be rm'crscd without changing tho ratc and the table will makc a quiclctravcrso to the right until dog Z+ turns tho :--tar-\\'hc1=l clock-Wiscand the table will than l'vrd to tho right. The cycle will be rcpratcd through tho dogs 0+, Z--l-, 0 and N tin table continuously ro ciprocatingz from li-lt to right and executing variations in its rate of travel during each stroke in :urrordanrc with the adjustment of the various dogs Having, thus rcvealcd this invention, I claim as nmwand drsirc to soc-arc by Lrttcrfi latcnt of tho lnitrd States:

1. A machino-tool coinbining a spindle: a table positioned thcrcnndc' adapted to r ciprocato transvcrscly to said spindlc; frame-units for mounting said Fpindl and tablo in said rclation, and providing a rola tivc adjustnicnt bctnoon said table and s'pindlc in a dirrction parallol nith tho axi, of the Spindlov and also rnabling: tho vcrtiral distancc bctwccn raid r-zpindl and tahlo to be adjustcd; a irimc-movor supportcd b: ono of said l'ranaunits; a s um-d ('llilllifi mechanism carrird by tho l'ramc unit wi l porting the spindle and in intrrwniog i la tion Willi said prin'lrinovi-r and staid Hldll ll i a first transnnasion establishing driving r4 lation bctwocn said primomoicr and vsaid spindlc through vsaid spccil-rhango nwchanisin; a trod-change na-cbanism ('Hliii'il di' rcr-tly by anothcr one ol" Said l' aincunils and located bclow said ta lc. and hm ing! its gear-shift lcvcr acccssiblo from thov l on Ward side of said tabla; a sa-rond trananiasion dcriving from vQuid prinmrnowr mo tion unall'ccti-d by cithcr said spm-d changior said food-change nu chaniams. and ada'it ed to bc brought into propclling connection with said table to clfrct a quick t-l':1\(|':-7( thereof; a third transmission extcndcd through said food-change incrhanism and deriving motion from said prim: morrr; a shifting moans l'ol' irndoring said srcond transmission incfl'cctivo to propel said ta le indopondrntlv of said third transmission. and forrnablinp: tho motion of said ta lc to be cll'ccted through said third transmimzion; and a motionwoverrcr in serial rclation with each of said transmissions.

2. A l'ililf'llll'lfl'tool organization combining a table; a tripancmhcr arrangod adjaccnt thereto and providing contact surfaces located at o posits sides of its axis of movement; :1 dog movable with said table and having a contact surface adapted to impact a Contact surface on one side of the axis of said trip-member and move it in one direction during an advance of said table; a second dog movable with said ta le and having a contact surface adapted to impact a contact surface on the othcr side. of the axis of said tri -memhcr and also move it in the aforesai direction during a retreat of said table; and marin for propelling said table in accordance iii: the angular posi tion of said trip-mombcr.

3. A unitary machimi-tool organization combining a spindle; in table; a prime-- mover; a Specdchango mechanism bvtwocn the spindle and the p imc-mori'a'; a first transmission connecting: said spindle and said primommw-r through said mccl'ianism; a filll-{fllilliflffl nicchanism; a miitiiarrcvrrsor intcrvcning between said primeano cr and said food-change mechanism; a sccond tranHmiHsion adaptwl to con ncct said prinic-n'iovcn said motion-rrvrracr, said ford-change IlHIhiHllSlll and said tablc togcthcr in scrics in said scquoncc; a third transmiasion conni-rtcd to said scrond trmn-.=- mission botwm-n said motiorrrcvcrscr and aid fw-ilrliango invchan am to impart a qui lctravcrao to said tablc at :2 rate in lolu-ndont of tho condition of said lw-d-rliang nu'rhanism: and shil'iing mcana adaptcd t'i rcndcr r aid third transmisaion inopcraliuto impart a anick-traxrrac to mid tablc and to ri-ndmwill i-au'ond tIHllHlHlr-ihlnll oiicrativo o mow raid tablc to food at a rat d ivr- HililWl w'aid flfllldflltlllifi nn-rliani zm.

l. A unitary niachinn tool orgaiioa'tion combining a, pl'illltf ll. (l\ (fl'; a rmwi irocating tabla: a non-rotatablr tccd-rrrcw carrioil by said ta le to translato tlu rruith; a table- MlPlHIZ'Li, a rotatablo nut carricd liv Raid tablo sumiort and co perating with said, i'i-odwcrcw: a fordrhangc nirchani -tm inivrvvning brtwvcn said girimomoh-r and said till-la; a transnii on rXI-xnding from said a-imo-movor QXOlHFiiH': o," aaid fowl chang l'HlllhhlTl! and tll i llg in a tori'niniil monibcr locatwl adja tciit w zl not; a s1 n l transmiasion inc-Fading aid foltch mp5:- l'llflllilllihlll and also ih-rixing m tion from said irimc m vcr and ending in a scconil torminalaucmia-r .oratvd adjari-nt .said out; a conm-cting iml:mncntrdity for jhll'li-"ili ing an op raiivc imvclniniral mnnvction bi tWM-Il oithrr mid ii: irrnzinainwinbcr and said nut to rotat'c t at a rato dctcrmincd by said feed-change mcclnmiszn or bctvd scn said second tcrminal-n'imnbw and said nut to i.-!- able it to impart a (IHh'k-T-E'XHQISG to ,ri table at a rate indc irnrlcni of tho conditiwn of said food-change nil-cl anisin.

5. A machine-tool organization conibini 11;; two actuated elements, the one being a table and the other being a spindle; a first and a second frame-unit, one of said frammmits suppoltingathe spindle and the other supporting t table; an intermediate frameunit having a vertically :uljlnstable connecspcwl-chango tion with the first frame-unit and also having a horizontally adjustable connection with the se ond frnmounit, one of said frame-units and also thc weight of one of said actuated elements hcing both support ed by another of said frnnwunits; a \'illi-- ahlc-specd mechanism cnrrir-il directly by said lnst-mcntiomwl frnme nnit and gcs-irrd to actuate tho said clement supported thoroby; and another organized rriinhlospcrd mechanism cnrricd directly by onrv of said other frame-units and goinml to said ofhcr element to efi'cct rniirlr-trnvcrsc or 2 fwd thereof, and also providing a. hnni'l-o vcmting part located mljncnni: said last zncir t oncd element: and a, oriznc-nnm-r carried by one of said fixunoono'x; and gcrircd to each of said \nrinhlc-sm -i mechanisms 6. A lnzichinotool orgzinimiion combining a tnhlc; a trip-mrmhcr nrrnngiwl m'ijucnnt thereto and providing contnat sin-faces iocnted at opposite sides of it and of moremcnt; a first dog moral; niih said trihic and having a contact a wir i to impact :r-oonlmri :nrfnce ihc axis ofsnid tripdnrmher m more at om? direction during an ndvnnw f s'dill min: :1. second dog mowhlc with said molc and having a Contact snrfncc odiimcd to impact contact Btirface on the othcr side of the axis of said tripmcmhcr and also more it in the aforesaid direction during a rcirrnt mid table; a part moved to-zmd fro by said iii-smber during two successive angular (Hi'i'lfi' thereof; clutch mechanism (ii mi in part; and means coni'rollcd l? said rlo mechanism for propelling w l bshi rn or slowly.

7. A unitary mncliinwtool organization combining a. spindle; a, whit-g a primrmover; a speed-change n'wchnnism hctxwrn the spindle and the primmnowr; ll i i-m} change mechanism and a motionraven-1c!" "'c tween the table and the primomowr; n first transmission commenting said so idlo H32? said prime-mover through said soncdrhs; mechanism; a second transmission ad to connect said tibia said motion-row said foedchango mcclmnism and said 1 'inn. movqr together in ssries: a flrir'd tram-5min; sion connected: to said Second, firnnsm hetw on said motiomrcvcrsor and said in dchangc mechanism and shunting said food change mcchunism to imrnnft s qniul: tmverse to said table at a rate indopondont of the condition of said fcodrhzmgg'o mnchw nism; and shifting means adilpii' i to intcr rupt said third t'unsmission ."Ei'lll lo (*stnl lish a mechanical connection hctwcrn mid prime-mover and said table through said second transmission, whereby ht may mono said table to feed at a rate determined by said feed-change mechanism.

7 8c A unitary machinotool of t e nature disclosed, combining a spindle; a able positinned tln-r -nnd r adnptcd to reciprocate tlzinswrscl) to mid spindle; frame-units for mounting mid spindlc and tzzhle in said 11 lotion. and providing a rclntive adjustment hctvrccn said table and spindle in a direc tion 1m mil with the axis: of thc spindle and also rnnhlinn he \crtirnl distance between sold spindle and inhlc to be adjusted; a prim -mm+=r sezppm'tcd by one of said fnononnirs: an organized speed-change llil'lfliziliirfil inter wiring lwtwecn said prime- Ioowr and said spindle; i; first transmission l iiii ii lllig d iving relation between said 1 1"ii' H l!l( '-1,l' and said spindle through said nwclnmism; an organized h curried directly by an fling: mm and located below said iiillif and having its gear-shift lever i i' f l Lili in. :hlc 4 52mm.

illl'rlillfii :uljrirfrni d Kahli and a second tl'nnsinission iirriiingz from said primeinowr motion Mmliccud by said first men- ;ionrd ow-i rhingo i'nrrioinism and exlhroi "*i. mid 'fcul lnmge mechation with said table to re- 2* of {L ziiilrtrziverse rate or i mined by the said in; l'nrz'ms',

-t mi organization v n table; a tablepromoans; ii prhni-i-moierg a speed change nirnnmszn Wt= vwn the spindle and first lrnnsmission cunand win prime-mover fi ciimngn mrchanism; a motion & shifi Jerri: a second amni nconnecting id prime-mover, said nmtizn'r-o;vo n hilt-device and said izil-hpropclhn won in sorios in the ordrr in N55: mihrhiingc mwhnnism; a ihird frat; rniwi r! nr,- -rii to said -ccond lrnnszmhuon iwiwern said morinorm-raw! and said shift-d i: ii rd nding through mid iocd-clnrmz sin-r: said hifi'dovice being :idnptcd to inirrrunt the UIHIS- mitting cagaciiv f mid we" in? transmission and to estsihl h -zn oprrsti 'c incchnnicnl connmrtion hctwrcn said primomovcr and said fable through said third transmission. whe 'eby said tzihlc may he caused to feed the prinzomover; n

through :ni

at a. rate determined by said feedchange mechanism and in the direction determined by said motion-reverser.

11. A machine-tool organization combining a reciprocating table; a tablesupport;

a feed'screw; a gear in threaded relation with said feedscreW and constituting a gearnut therefor, said feed-screw being nonrotatively secured to one of said parts and said not being rotatively secured to the other; an interponcnt gear permanently meshing with said gem-hut; a ower-driven quick-traverse transmission en ing in a terminal-member located adjacent said interponent gear; a table-feed transmission including a feed-change mechanism also ending in on ailiacent terminal-member; end means for establishing a drivin relation between said interponent gear an either of said terminal-men) ers.

12. A. machine-tool mg'anization combining a table; a series of similar dogs arranged in a row thereon; a rotatable trip-member adapted to be turned prm ressively through e'qual predetermined angles by the successive impacts of said dogs; a rotatable shiftelemen't connected with said tripmemoer to be moved positively thereby when it is turned in one direction. and mmlicr ed by said tripmembor when it is turne, in iii opposite direction; a rapidly driven part; a slowly driven part; a tableii-polling means; an element periodically oscillated by said rotatable shift-element; and means actuated by said element for establishing an operative connection of either of said parts with said table-propelling means.

13. A machine-tool organization combin ing a reciprocating member constituting a table: a relatively stationary imiz iber con- .tuting a table support: av ti: ment constituting fowl-screw, a second element in threaded relation wzl'h said feed screw and constituting a not therefor; one of said elements being non rntatively cured to one of said members and, the other of said elements being rotatiwly secured to the other member; a gear secured to said last-mentioned clement; an interponent gear permanently meshing with said gear: a power-driven quick-traverse t ansmission ending in a terminal member located adlament said gear; a feed transnyis-rion includng! a feed-change mechanism also ending in IlIl adjacent terminal-member: unt l means for establishing av driving relation between said interponent gear and either of said t:,-rvninal-members.

'14. A machine-tool of the nat re disclosed combining a spindle; a table positioned thereunder adapted to reciprocate transrersely to said spindle; frame-nnits for mounting said spindle and table in said relation, and providing a relative adjustment between said table and spindle in s diree able with F tion parallel with the axis of the spindle and also enabling the vertical distance between said spindle and table to be adjusted; a rims-mover supported by one of said mine-units; a speed-change mechanism carried by the frame element supporting the spindle and in intervening relation with said prime-mover and said spindle; s first transmission establishing drivin relation between said rime-mover an said spindle through suit speed-change mechanism; on orgamzed. feed-change mechanism carried directly by another one of said frame-unite and located below said table, and having its gearshift lever accessible from the forward side of said table; and a second transmission deriving from said prime-rnover motion unaffected by said'or'fonized first mentioned eed-chnnge me: anism and extending time b said cedrhsnge mechanism into prope line connection with said table to reciprocatr it either at a quick-traverse rate or at a r le of feed determined by the said fecdwi 51o mechanism .5, An entomatic tsbie-propeilin mechanism combining an advancing tab e; s rotury member adjacent said table and providing different contact surfaces; It first dog lie with id table adapted to impact z." in s: i'arvri to r tate said i Sizid 1i insist-er into one Mg movizl t met the other of said content sizrisccs further to 1'0 tate said member inn. eimthei position, a propelling mechanism for imparting fast or slow speed to said table. end a shift mechanism'controlled by said member and edspted on one position thereof to cause said pro *elling mechanism slowly to advance sai table, and in another osition thereof rapidly to ed'vsn e aid tab 0.

16.' An antennas H wide-propelling mechanismv combining es advancing table; a member adjacent said table and providing dil-- ferent contact surfaces located in the same plane; a first dog mo able in said plane with said table adapted to impact one of said contact surfaces to move said member into one position: a second dog movable also in said plene with ssid table adapted to impact the other of said Contact surfaces to more said member into another position; :1 propeiling mechanism normally adapted slowiy to pro el said table; means interchangeably aveila ale with a portion of said mechanism and adapted greatly to increase the propelling capacity of said im-"lmnism; and izift iinstrumentalit eontrolied by said member and adapted in one osi::ion thereof to render said means ineliertlve and in another position to render it effective.

17. An automatic tabiepropelling mechw nism combining an advancin table; a tripinstrumentality adjacent salt table and rottatable progressively into difl'erent posi- 'llC tions; a first dog movable with said tahiil adapted when advancing therewith to impact said trip instrumenta'lity and rotate it into one position; a second dog movable with said table adapted also when advancing therewith to impact and further rotate it into another position, a propelling lllllllilx nism for imparting fast or slow speeds to' thereunder adapted to reciprocate transversely to said spindle; frame-units for mounting said spindle and table in said l'llil tion and providing a relative adjustment between said table and spindle in a dir ction parallel with the axis of the spindle and also enabling the \ertical distance between said spindle and table to he adinsm rn'irnw nover supported by one of aid frame-units; a sprawl-change mechanism rarried by the frame-unit Sllpl'ml'tlllfl the spindle and in intervening relation with said prime mort. "and said spindle; a fir t, transmission establishing driving relation between said prime-mover and said spindl through said speed-change mechanism: a feed ehange mechanism carried directly by another one of said frameainits and located below said table, and having its gear hiftlever accessible from the forward side of said table; a second transmission deriving from said prime-mover nittion nnalie ted by said first mentioned spcedehange nn-rhanisin and extending through said teed changemechanism and adapted to be brought into propelling connection with said 'table to feed it at a rate.determined hy-tlle said feedrliange mechanism; a third transmission derivinp; from said second transmission motion unall'ectcd by said fetal-change mechanism; and a shift device available to disconne t the second transmission i i-om said table and to connect the third transni', ion therewith to ell'ect a quielotraverse of said table inde 'nzndently of said second transmission.

if). An automatic table-propelling men-h- .i-nd don inmable with o l.

.table:

said tableymeans abroptl adapted or! to increase the propelling rapacii -r oi s: mechanism:- and :1 shirt dmiee by the progressive movement oi mentality and adapted n mined position tlieroof lo rm i. iin*llri'ti\iand it: th next anew determinel po 11b: in ailtfinatio :ehlopro anion or-nil'ini n an pri ,g'lwsiirij' r tatableadjaeent said table and ent snecessii'e positions; a ii wt d; \\ith said table adapt d when therewith to impact said trip in tin talit and more ii into one p i id H aim when ad\ raid scre and rmdined and nioi'enientz 2' irlrdic imorzo not: means I m a Hill! ni wozrnt' 'fi' said in; runrt 'ilii and mix; donwletern:ined i tion th t-rel :o r eliertive only the lii'st mention: d inane adapted in am the! i'lfi-llitillllli3tl to rendereli'ertive the seeond m ntioned means.

31. An automatie tableproprlling mechanion combining an advancing table; a rogrt-ssii'ely rotatable fastqelow trip in- \tEHHH'UiH'llLV adjacent said tat-le a reversing: trip-instrnmentalit; also adjacent aid tahloprorwlling mechanism tit latdwri; rnpili and MUM"? ii i" l ti tii itirs. and d aw .niovalwlo with said ta le ior automatically progressiiely aiiltingg the fastslow tripinstrmnentality into successive posi-ti ':ns. and for subsequently shiftin; the reversing trip-instrnmentality 22. An automatic tablepropelling inrehanism combining a movable table; tablepropelling mechanism; two independently amiable, trip-uevioes ash-acent said table, one of said trip-d iiees providing a plural it of equispaced contact surfaces; a num la r of dogs inovahle with said table each lowing a contact surface whereby said last m ntioned trip'deviee will be actuated pro-- 're.-;s-,i\'el v into dillerent positions by the admin-e passage of said (legs: means for causing said propellingmechanism to a-kln- :ite the table rapidly or slowly aeeoidin to the position of said last mentioned tripdecire: and means for determining the dirertion oi operation of said. mechanism in accordance with the position ofthe other tripwlevir 2". An automatic table-propelling mechanism combining a movable table; tablepropelling n'ieclianism; two independently ian'i i llw capacity determined is said instrinnen' inc 

